Process and apparatus for bordering a corrugated plastic panel and panel thus obtained

Abstract

The present invention is related to a process for bordering a corrugated plastic panel and to a panel obtained through that process. In particular, the invention is related to a process for making a corrugated plastic panel comprising a bordering made in-line or out-line in order to close the openings outwards. The invention is also related to an apparatus for bordering according to that process. The panel is sealed and shock resistant thanks to the laying of thermoplastic elastomeric material.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The present invention is related to a process for bordering a corrugated plastic panel and to a panel obtained by means of such process. In particular, the invention is related to a process for the production of a corrugated plastic material panel comprising a bordering made in-line or off-line in order to close the openings towards the exterior. The invention is also related to an apparatus for bordering according to such process.PRIOR ART TECHNIQUE[0002]In the packaging sector, plywood is a material still used nowadays as a separator in the pallet, while cardboard is used to separate single items. However, both these materials have a limited use because of their easy deterioration. In fact, both the plywood fibers and those of the cardboard tend to easily deteriorate when exposed to environmental conditions such as humidity, wind, rain or sun. Moreover, such materials are likewise easily contaminated because they are subject to dirt, fungi spo...

AI Technical Summary

Benefits of technology

The present invention is a simple and efficient process for borders of plastic corrugated panels that results in a sealed and resistant panel. The process involves sealing the open corrugations in the borders of the panels through a single operation that creates a smooth and shock-absorbing border. The resulting corrugated thermoplastic panels can be used for a variety of applications such as shipping and packaging. Additionally, the invention also provides an apparatus for sealing the panels and a plant for making them.

Problems solved by technology

However, both these materials have a limited use because of their easy deterioration.

In fact, both the plywood fibers and those of the cardboard tend to easily deteriorate when exposed to environmental conditions such as humidity, wind, rain or sun.

Moreover, such materials are likewise easily contaminated because they are subject to dirt, fungi spores, and bacteria.

As a result they are not well accepted especially in the sector of foodstuffs.

The openings are a problem as they let in dust, dirt and liquids that accumulate in the corrugations.

Further, the opening borders are rough and sharp so they can cause scratches to the user or tears to clothes.

However, this process is rather complex because it is necessary to have a strip whereon some glue must be put and to have an adhering system for the strip thus prepared on the open corrugation.

Further, the strip hold is rather low.

This process, though simpler and more efficient than the first one, requires the use of rather complex apparatuses.

Moreover, the sealed border does not ensure a good shock resistance and, consequently, it is subject to easy breaking and to the same previously highlighted problems concerning open borders.

However, it is clear that such variation is particularly complex and expensive both for the process and for the finished product.

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